http://www.washingtontimes.com/news/2012/jun/22/navy-recognizes-first-woman-officer-to-serve-on-su/

 naval supply officer Britta Christstianson from Wisconsin has become the first woman to serve on a Naval Submarine. Britta and 24 other woman were selected to take part in submarine officer training and she is the first one to compete it. Pretty cool stuff in other articles she talks about living on the ship they had a "code knock" for changing and going to the bathroom.